Warp-leasing machine



Mancll 25 1924a E. F. HATHAWAY WARP LEASING MACHINE March 25 1924.

E. F. HATHAWAY wARP LEASING MACHINE Filed Jan. l5 1919 5 Sheets-Sheet 2 WM/WV@ March 25 1924.

E. F. HATHAWAY WARP LEASING MACHINE 5 Sheets-Sheet 5 m un QR March 25, 1924. 1,487,740

' E. F. HATHAWAY wARP LEASING MACHINE Fi1ed`,Jan. 13 1919 5 sheets-sheet 4 y ka-o l AYJYY OK Edgar-E. Hohowoo.

March 25 1924.

(IC-. Haikou ou.

' Patented Mar. 25, 1924.

EDGAR F. EATHAWAY, OF DOECHESTER, MASSACHUSETTS, ASSIGNOR, BY E AS SIGNHENTS, TO BARBER-COLMAN COMPANY, OF BOCKFOED, ILLINOIS, A. COR- PORATION OF ILLINOIS.

Y WMP-LEASING MACHINE.

Application filed Jaiuary 13, 1919. Serial No. 270,893.

To all 'whom z't may concern.'

Be it known that I, EDGAR F. HATHAWAY, a citizen of the United States, and a resident of Dorchester, in the county. of Suffolk and Commonwealth of Massachusetts, have invented Improvements in Warp-LeasingMachines, of which the following descri tion, in connection with the accompanying rawings, is a specification, like characters on the drawings representing like parts.

This invention relates to warp leasing machines, being more particularly intended to provide an eiiicient but simple and rapidly working mechanism for placing the threads of a warp in leased arrangement. The invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings Figure 1 is a front elevation in partial section and partly broken away, showing the principal working parts of a warp leasing machine embodying one form of the invention.

Fig. 2 is an end elevation looking from the left in Fig. 1, showing the warp leasing machine illustrated therein;

Fig. 3 is a plan view of the warp leasing machine shown in Fig. 1;

Fig. 4 is a plan view, on an enlarged scale, showing one end of the travelling carriage and the thread-separating mechanism;

Fig. 5 is an end elevation, in partial section, of the parts shown in Fig. 4;

Fig. 6 is a sectional detail showing the clutch for the separating worm in disconnected relation;

Fig. 7 is a perspective showing the action of the two leasing members on the warp threads; and

Fig. 8 is a sectional detail showing the carriers for the leasing cords attached to the lease rods in place of the helical leasing members. A

Referring to the drawings and to the embodiment of the invention therein shown, the machine there disclosed (see Fig. 1) comprises a supporting frame having supporting legsV 10 which carry the bed 11 and the upright end frame supports- 12. The

frame members 12 are connected at the rear by a tie rod 13, and at the front by a similar rod 14. v

In the illustrated form of machine the sheet of warp threads is held suitably stretched with the threads substantially parallel and preferably, as herein shown, they are acted upon progressively by suitable thread-separating mechanism to facilitate the action of the leasing elements roper and thereafter by suitable leasing e ements which advance with relation to the; stretched and separated threads and have provision whereby the threads are so positioned with relation to the leasing members that successive threads will be disposed in opposite arrangement above and below the two members and with the line of thread crossings between the two.

Any common or suitable thread-separating mechanism may be employed. The form shown herein comprises a helicallv grooved sleeve 15 adapted to slide along the tie rod 14 and to advance slowly with relation to the threads, the threaded sleeve or worm serving to smooth out the foremost threads, separate them and spread them apart, as indicated in Fig. 7, so that they may be readily operated upon by the leasing members. The latter may have any desired shape and may be given any desired movement, but herein a highly effective leasing action is secured by providing leasing members in the forni of rods 16 and 17 having end portions 18 and 19 which enter between the separated warp threads and arrange them in leased position on the rods by hooking successively under and over a thread or threads, thus positioning regularl recurrent threads of the -set over or un er the leasing rod. To effect this action I preferably provide means for rotating the ends of the rods 16 and 17 and direct these ends helically. Conveniently they may form a complete helix of one or more turns or spires, forming anopen' screw which as the rod rotates will screw its way through the series of warp threads. In this action the sheet of threads is not essentially displaced and no strain is placed upon the threads, but the helical ends 18 and 19 pass through the spaces between the threads alternately from above and below, and the threads pass through the opencentered coil until they are delivered without substantial displacement to the u per or lower side of the lease rod, as t e case mal;T be. v

referably though not necessarily, one helix is left handed and the other right handed and the two rods are rotated in opposite directions. Thus., the helix 18 is ri ht handed and its rod is rotated clockw1se while the helix 19 is left handed and its rod is rotated counterclockwise.

Referring firstto the devices for holding and controlling the Warp threads, the latter have their ends fastened to the thread clamp 20 (see Figs. 1, 2 and 3) which may be of any desired construction. When the machine is to be loaded, the warp beam may be positioned back of the machine, being brought there, for example, on a truck. The ends of the warp threads are then clamped by the clamp 20 and the latter is carried up and over the machine and over the tie rod 14 at the front end or the machine, leading the sheet of warp threads over one member 21 of the back clamp. The sheet of warp threads is then clamped at the back of the machine in the back clamp b applying the remaining member 22 of t e clamp, the

latter being of any suitable construction, but preferably provided with some form of clamping lever, such as the cam levers 23, by means of which the threads are clamped tightly between the clamp members 21 and 22. The sheet of warp threads is then stretched tightly across the top of the machine. This may be accomplished by relying simply on the weight of the depending front clamp 20, the latter being allowed to hang loosely in place, or the latter may be yieldabl'- drawn down to stretch the threads, as y removably securing it to the spring-pressed supports 24. The latter are secured to the upright rods 25 which, in turn, are fastened to the cross rod 26 secured to the machine frame 10. The supports 24 are pressed yieldably downward by the coiled springs 27 which encircle the rods 25.

Referring now to the thread-separating and leasing devices, in order to permit progressive action of the latter across the warp, the thread-separating worm 15 and the leasing members 16 and 17 are mounted upon a travelling carriage, although, if desired, these devices might work in a fixed position and the warp support be made to travel. The travelling carriage may be of an suitable construction, but herein comprises a carriage bed 30 adapted to slide upon guideways 31 on the machine bed 11 and carrying the bar 32 suiiiciently prolonged to serve as a support for the leas ing rods and their actuating or driving devices. lThe bar may be ided and supported by one or more ro 1er supports 33 on the machine frame, and additional roller insumo supports 34 carried by standards detached from the machine frame may, be availed of for the .overhanging end of the carriage bar. During the leasing operation, the leasing carriage is given a feeding movement from left to right, as viewed in Fig. l. Any suitable mechanism may be employed for imparting this feeding movement, but herein there is shown a lead screw 35 adapted to engage the nut 36 carried by the carriage and impart to the latter a movement of traverse. To permit the operator to move the carriage quickly from one part of the bed to another, the nut is split and thc two sections connectedv to the segmental gears l37 and 38 (see Figs. 4 and 5), the gear 38 being connected with a handle 39. The latter has a spring-pressed pin 40 adapted to engage an opening in the bracket 4l on the carriage bed, being thereby locked in its lewermost or carriage feeding position. The pin has a hooked end 42 (Fig. 3) by which it may be unlocked and the lever lifted, the pin snapping back over the top of the bracket 41 so as to hold the lever elevated or in its non-feeding position during such periods as a rapid adjustment of the carriage is required.

The lead screw 35 may be driven in any desired manner, but herein the same is given an intermittent feeding movement from the main driving shaft 45, the extent of which movement may be adjusted by finely graduated amounts. This is herein accomplished by means substantially the same as disclosed in prior patent to Lea, No. 1,090,401, dated March 17, 1914. This is best shown in Fig. 2 and. briefly, consists of a double rack 46 adjustably and eccentrically connected to the crank disc 47 and engaging with the gears 48 and 49 which eiect a step-by-step driving movement of the lead screw by means of a ratchet and pawl connection. The crank disc 47 is driven from the drive shaft 45 by means of the intermeshing gears 50 and 51, the latter on the drive shaft 45.

To impart movement to the leasing members and the separating devices on the travelling carriage, the latter (see Fig. 1) is provided with the pinion 52 which is held within the depending support 53 on the carriage and has a splined driving connection to the drive shaft 45. The pinion 52- meshes with the gear 54 on the carriage, the latter being mounted on the untershaft 55. Connected to be driven by the countershaft, is the spiral gear 56 which drives the short, inclined shaft 57 by means of the intermeshing spiral gear 58. To impart a rotative movement to the thread-separating worm 15,

the shaft 57 has secured thereto the collar 60, (Figs. 5 and 6) which latter -is normally clutched to the sleeve 61 carrying at its end thebevelled pinion 62 meshing with the bevelled gear 63 threaded or otherwise secured to the end of the worm sleeve. The worm sleeve is advanced along the rod 14 and its intermeshing relation to the drive sleeve 61 preserved by means of the yoke piece 64 fastened to the bearing 65 for the drive sleeve and eng ving a necked-down or grooved portionv o the worm sleeve. In the no1-mal operation of the machine, as the carriage is advanced intermittently, step by step, the drive shaft 57 is constantly rotated, imparting a constant and uniform rotation to the separating worm sleeve 15. Preferably, however, there is provided means for disconnecting the latter at will and turning it either backward or forward to correct errors in separation or to make any desired end adjustment which may be required. For this purpose (see Figs. 5 and 6) lthe drive sleeve 61 carries-the collar 66 nonrotatably secured on the sleeve 61 but capable of sliding movement thereon. The collar 66 has secured thereto the hand wheel 67 by means of which it may be moved lengthwise the shaft 57 or rotated on the shaft. The collar 66 is also provided with the pin 68 which normally seats in'an opening in the drive collar 60 and serves to connect the drive sleeve 61 with the shaft 57 for rotative movement. When desired, however, the hand wheel may 'be lifted to disengage the pin from the collar, disconnecting the drive sleeve and drive shaft, and may also be turned either right-handedly or left-handedly to turn the thread-separating Worm forward or backward as may be required. When the hand wheel is released, the pin will snap back into engagement with the collar, under the pressure of the expansion spring 66, thus restoring the driving conf nectlon.

The advancing end of the thread-separating worm is preferably given a formation such as the fluted, tapered form illustrated.V

so that the threads which' are first engaged by the advancing sleeve are smoothed out and placed under an increasing tension. As they advance up the sleeve, they are engaged by the thin, wedge-shaped lip 70 (Fig. 4) of the worm and the threads are picked olf one by one, passing into the end of the groove 71, the pitch of which rapidly increases. The series of threads engaged by the worm are thus -spread apart as indicated in Fig. 7

The separated threads, after being leased, pass off from the worm into a stationary shield or apron 72 (see Figs. 4 and 5) which is fitted into a groove in the back end of the worm and which lprevents contact between the threads and the connections between the worm and the driving shaft 57. The threads are delivered by this apron again to the` stationary rod 14 as the worm advances with the leasing carriage.

Referring now to Fig. 3, the leasing members 16 and 17 are secured to the rotary rods .80 and 8-1 which are su ported near their forward ends by the ro ers 82 carried on` the bracket 83 fastened to vthe bar 32. At f their opposite ends they are removably and detachably. secured to the driving sleeves or sockets 84 which may 'be similar in -construction to the sockets' 8 shown in Patent No. 980,086, to Field et al. sockets 84 are rotatably mounted in the upright bracket 85 carried near the end ofthe bar.32, and are rotated preferably with' a continuous rotary'motion and atA a uniform rate, but in op ositedirections', by means of theintermes in gears 86 ,and 87. The gear 87 (see Fi 2 is driven by the 4pinion The driving 88 mounted on t e shaft 89, the latter in turn e' -being driven by the driving shaft 9,0 havingy at one end the universal joint connection 91 to the shaft 89, and at the opposite end the universal joint'connection 92 to the countershaft 55 on the carriage 30.

By the described mechanism, as the carriage 30 is advanced'step by step, the continuous rotary movement of the warp-sep-- arating worm 15 separates and opens up the sheet of warp threads, while the concomitant continuous rotation of the lease rods 80 l and 81 causes the helices to screw their way through the warp threads, disposing themv along the lease rods, as shown-at the left-in Fig. 7, as the rods advance across the warp the leased threads passing between the lease rods and the rollers 82. This action which, since the principal parts have a continuous uni-directlonal rotary movement, may be carried on at a high .rate of speedv is continued untill the entire warp has been placed in leased relation to the two rods 8()v and 81. When this condition is reached, the lease rods may be withdrawn from the Warp and lease cords substituted therefor.v To facilitate this operation, the helical ends of the lease rods 16 and 17 (Fig. 7) aredetachably secured thereto, as by the threaded conngctions 93 and 94. After the warp is leased, these ends which then prot-rude beyond the edge of the warp are disconnected from the rods and are replaced by the threaded couplings 95 and 96, as Shown in Fig. 8, such couplings having secured thereto the lease cords 97 and 98. The opposite lends of the rods are then disconnected from the driving sockets 84 and the lease cords 97 and 98 drawn through the warps, leaving-the lease cords in leased relation to the sheet of warp threads. The ends of the lease cords being;

disconnected from the couplings 95 and 96,

In order to maintain the-desired angular relation between the warp threads and. the separating worm, and to compensate for any irregularities in the spacing of the threads, the warp may be given a compensating ading gears 101 and 102, and turns the worm wheel 104. The worm wheel engages with rack teeth 105 formed on the clamp member v21,`the latter being loosely mountedin the frame of the machine. Such movement of the worm wheel imparts a longitudinal slid\\ ing movement to the clamp, serves toshift the warp longitudinally of the machine and varies the angular relation of the'threads to the separating mechanism.v

The machine is also preferably providedI with means whereby the operator can stopv and start the same instantly, giving opport-unity for making the necessary manual corrections in the separat-,ion of the threads. Herein such means are shown in Fig. 1 as similar to those illustrated in Patent No. 1,190,761, to Hathaway. For this purpose the hand rod 100 is capable of a sliding movement, as well as a rotary movement, and has one end secured'to the lever 110, the lower end of which operates simultaneously a brake member 111 on the brake 112, and a clutch member 113,.which latter is adapted to connect the main driving shaft to, or disconnect the same from, the main driving pulley 114. Movement of the hand rod longitudinally in one direction serves to dis- Y connect the power from the machine and apply the brake, while movement in the opposite direction releases the brake and oonnects the driving power to the machine, the two positions of the lever 110 being indicated in dotted lines. As described in the aforesaid Patent No. 1,190,761, the hand rod `100 is also capable of being rocked along the curved. guide 115 into the dotted line position shown in Fig. 2, by means of the swinging supporting arms 116, sothat it may be thrown up out of the way when the machine is being loaded or unloaded.

I have described in detail the various elements disclosed in the particular embodiment of my -invention chosen for purposes of illustration, and in doing so have referred to the various parts by the specific names, but with an identifying or descriptive rather than a definitive purpose. The principles exemplified by the particular example shown and described'whioh I claim as new and desire to secure by Letters Patent I shall express in the following claims 1. A leasing machine having, in combination, a framework'comprising a bed, a rod extending longitudinally of and above the bed and` along one side thereof, means at the other side of the bed and above the bed for supporting a warp clamp, means at the first-mentioned side of the bed and below the-bed to receive a warp clamp, the warp extending from the first-mentioned clamp to said rod and thence downwardly to the second-mentioned clamp, a carriage mounted on the bed to travel below the sheet of threads, a thread-spacer mounted on said carriage and slidable on said rodl into engagement with the threads extending over said rod, and leasing means located on said carriage betweensaid spacer and the firstmentioned clamp.

2. A leasing machine having, in combination, a bed, a warp-supporting rod extending longitudinally of the bed, means cooperating with said rod to support a sheet of threads over the bed, a carriage mounted on the bed to travel below the sheet of threads, a thread-spacin device `mounted on said carriage/and sli able upon said rod into engagement with the threads extending over the rod, two lease rods moving with the carriage substantiallyv in the plane of the warp, each of said lease rods having at its forward end a removable section provided with lease rods in opposite directions, said lease rods being detachably securedsto the rotating means.

3. A leasing machine having, in combination, a bed, a warp-supporting rod extending longitudinally of the bed, means cooperatin with said rod to support asheet of threa s over the bed, a carriage mounted on the bed to travel below the sheet of threads, a thread-spacing device mounted on said carriage and slidable upon said rod into engagement with the threads extending over the rod, two lease rods moving with the carriage, each of said lease rods having an open helix at its forward end, and means for rotatin said lease rods.

4. A leasing machine having, in combination, two spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative traveling movement between said warp supports and said mechanism, said mechanism comprising a thread spacer mounted on one of said supports, two lease rods located between said spacer and the other support, each of said rods having at its forward end a removable section provided with an open helix, said rods lying substantially in thev plane of the warp, and means for rotating saidrods in opposite directions, said rods being detachably secured to the rotating ,means 5. A leasing machine having, in combination, two spaced support-s between which a sheet of warp threads extends, operating mechanism, and means for causing relative traveling movement between said warp supports and said mechanism, sai/d mechanism comprising a thread spacer,two lease rods 90 an open helix, and means for` rotating said located between said spacer and one of said wa supports, each of said rods having at its I i)orward end a removable section provided with an open helix, and means for rotating said rods, said rods being detachably secured to the rotating means.

6. A leasing machine having, in combination, two spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative traveling movement between said warp supports and said mechanism, said mechanism comprising a thread spacer mounted on on tween said spacer and the other support, each of said rods having an open helix at its forward end, and means for rotating said rods in opposite directions, said rods being detachably secured to the rotating means.

7. A leasing machine having, in combination, two spaced supports between which a sheet of war threads extends, `operating mechanism, an means for causing relative traveling movement between said warp supports and said mechanism, said mechanism comprising a thread spacer mounted on one of said supports, two lease rods located between said spacer andthe other support, each of said rods having an open helix at its forward end, and means for rotating said rods.

8. A leasing machine having, in combination, two spaced supports between which a sheet of warp threads extends, operating mechanism, and means for causing relative traveling movement between said warp supports and said mechanism, said mechanism comprising a thread spacer mounted on one of said supports, and leasing means located between saidspacer and the other support.

9. A warp-leasing machine having, in combination, a main frame comprising a bed, means on the main frame for supporting a warp clamp above and at the rear side of `the bed, a rod supported in the main frame above and at the forward side of the bed and parallel with said clamp, means on the frame below said rod for supporting a second warp clamp, the threads extending from the rst mentioned clamp to said rod and thence downwardly to the second clamp, a carriage mounted to travel along the bed below the sheet of threads supported by said rod and the first mentioned clamp, mechanism on said carriage for selecting and spacing the threads and for leasing the spaced threads, a drive shaft extending longitudinally of and carried by the main frame, a. drive ulley mounted on said shaft at one end ofp the main frame, a clutch member on the drive shaft forconnecting the pulley to the shaft, a brake on said shaft adjacent to the clutch member, means for connecting the drive shaft to the mechanism on the carriage, a lead screw extending longitudinally connected to the carriage and engaging said leald screw, means at the end of the main frame opposite .to the drive pulley for connecting the lead screw to the drive shaft, mechanism for longitudinally shifting the first mentioned warp. clamp, and a hand rod extending longitudinally of the main frame and above the threads and connected to operate said clamp-shifting means, the clutch and the brake. l v

10. A textile machine having, in combination, a framework comp-rising a bed, a rod of said supports, two lease rods located be- \extending longitudinally of and` above the bed and along one side thereof, means at the other side of the bed and above the bed for supporting a warp clamp, means at the firstmentioned side ofthe bed and below the rod to receive a warp clamp, the warpextendin from the first-mentioned clamp to said rod and thence downwardly to the second-mentioned clamp, a carriage mounted on the bed to. travel below the sheet of threads, and a thread spacer mounted on said carriage and Islidable on said rod into engagement with the threads extending over said rod.

ll. A textile machine having, in combination, a framework comprising a bed, a rod extending longitudinally of 4and above the bed and along one side thereof, means at the other side of the bed and above the bed for supportinga warp clamp, Ithe warpI extending from the clamp to said rod, a carriage mounted on the bed to trave-l below the sheet of threads, a thread-spacer mounted on said carriage for engagement with .the threads, and means for adjusting said clamp to maintain'the desired angular relation between the threads and the spacer.

12. A warp-leasing machine having, in combination, a carriage, a supporting rod extending rearwardly from the carriage, a bracket extending upwardly from the rear portion of said rod, two driving sockets rotatably mounted in said bracket, intermeshing gears' connected to said sockets, means for driving said gears, lease rods having their rear ends removably mounted in said sockets, each of said rods having at its forward end a removable section provided with an open helix, and means on the forward portion yof said supporting rod for sup-porting the lease rods.

13. A leasing machine having, in combination, two lease rods, each of said rods having at its forward end a removable section provided with an open helix, and means for rotating said rods, said rods being detachably connected to the rotating means.

14. A warp-leasing machinefhaving, in combination, a main frame, means on the main frame for supporting a warp, a carriage, means tocause the carriage to travel longitudinally of the frame and `transversely of the warp threads', means on the carriage for selecting and spacing successive threads, member extending rearwardly from the carriage, a bracket on the rear portion of said member, lease-rod holders rotatably mountedgon said bracket, lease rods having their rear ends removably connected to said holders, each of said rods having an open helix at its forward end to engare spaced threads, and n'ieans for causing re ative adjusting morement between the warp and the selecting means. Y

In a warp-leasing machine, in combination, a carriage, means on said carriage for supporting a thread selector, a member extending rearwardly from the carriage, a bracket on the rear portion of said member, leaseerods having their rear ends removably connected tosaid bracket, the forward ends of said rods being adjacent to the thread' selecte-r, andrmeans near the forward portion of said member for YYsupporting the Y lease rods.

itending rearwardly from the carriage, a

bracket on the rear portion of said rod,YY lease-rod holders rotatably mounted on said bracket, lease rods having their rear ends removably connected to said holders, means near the forward portion of said supporting rod for snpporting the lease rods, and ine-ans for rotating said holders.

17. In a warp-leasing machine, in combination, a carriage, a supporting roclextending rearwardly from the carriage, a bracket onY the rear portion of said rod, lease rods having their rear ends removably connected to saidbracket, and means near the forward portion of said supporting rod for supporting the lease rods. i

18d. A warp-leasing machine having,"in combination, a main frame, means on the main frame Yfor supporting a warp, a carriage, means. to cause the carriage to travel longitudinally of the frame and transversely i of thewarp threads, means on thecarri e for selecting and spacing successive threa S, rotatable lease-rod holders mounted to travel with said carriage, lease rods having their movement between the warpY and the selecting means.

carriage mounted on the bed to' travel below t-he sheet of threads, a thread spacer mounted on said carriage and slidable von said rod into engagement'with the threads extending over said rod, and means for adjustingsaid clamp to maintain the desired angular relation between the' threads and the spacer.

2(7). A textile machine having, 'in combination, aY framework comprising` a bed, a rod extending longitudinally of and above the bed and along one side thereof, means at the other side of the bed and above the bed for supporting Ya warpclamp, means at the first-mentioned sidey of the bed and below the bed to receive a warp clamp, the warp extending from then first-mentioned clamp to saidrod and thence downwardly to thev second-mentioned clamp, and means tending to move said'clamp-receiving means to tension the warp.

.- 21. A textile machine having, in combination, a bed, a warp-supporting rod extending longitudinally of the bed Yat one side thereof, means at the other side of the bed to cooperate with said rod in supporting a. sheet of threads over the bed, a carriage mounted on the bed to travel below the sheet of f threads, andV a thread-selecting worm mounted on said carriage and slidable upon said rod into en agement with the threads extending-over t1 e rod. e

22. A textile machine having, in com.- bination a bed, a warp-supporting rod extendin longitudinally ofthe bed at one side thereo means at the other side of the bed to support Va warp elamp, a carriage mounted on the bed to travel below a sheet of threads extending between said clamp and rod, and means moving with said carriage todoperate upon the threads adjacent to the ro In testimony whereof, I have signed my name to this s ecification.

i D-GAR F. IHATHAWAY. 

